CP-NCH-Au

Colloidal AFM probe with gold microsphere on NANOSENSORS™ TL-NCH AFM cantilever

Microsphere
Material: Gold
Diameter: 1.5-9 µm
AFM Cantilever
Force constant: 42 N/m
Res. Frequency: 330 kHz
Length: 125 µm
Select microsphere diameter:

The CP-NCH-Au colloidal probe features a spherical gold (Au) microparticle attached by a polymer adhesive to the free end of a NANOSENSORS™ TL-NCH tipless AFM cantilever.

The microspheres are made of gold with very high purity (≥ 99.96%). They are available in 3 different diameter ranges:

  • A = 1.5 µm - 3 µm
  • B = 3 µm - 5.5 µm
  • C = 5.5 µm - 9 µm

Please choose A, B or C when ordering!

Due to the different microsphere masses, the colloidal probe resonance frequency may be lower than the specified value for the base tipless AFM cantilever.

The NANOSENSORS™ TL-NCH AFM cantilevers are designed for special applications where no AFM tip at the end of the AFM cantilever is needed. They are highly doped to dissipate static charge and chemically inert to most common solvents. The holder chip features alignment grooves on the back side which guarantee precise alignment of the AFM cantilever position when used together with the NANOSENSORS™ Alignment chip.

The colloidal probe technique uses single colloids attached to AFM cantilevers for force measurements and offers possibilities for better understanding of many fundamental interactions such as adhesion phenomena, particle-surface interactions, mechanical properties, suspensions, hydrodynamics and boundary slip.

Please note that the state-of-the-art synthesis process of gold microparticles cannot guarantee a perfectly spherical shape with perfect surface smoothness. Nanoroughness and small shape deviations are to be expected.